Biesse FT440 PLC Error

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Been having ongoing problems with our old 440FT stopping mid-cut with error message "PLC432 > Peripheral device not working ybn.1.2.6
-this relates to the drillhead module or the wiring aroud it i believe......
So Far, we have Replaced/swapped out 2 modules [Drillhead]
Replaced "Y" connector
tweaked machine speed parameters, this seemed to help only briefly...
As with any intermittent error, this is extremely frustrating to our operator & hard to diagnose.

Dave, sorry to hear about the problem..this is a common problem that is normally fixed by additional grounding, or checking existing grounding
Ie ground flex hose to the ground circuit on the machine and making sure all grounding is tight. I suggest you contact Biesse as well as techs can provide additional insight. We, have also on one occasion, installed ground rod into floor to dissipate the Static Build up.
regards
dylan

AL4A4 (CE201) module that is prior to the CE305 module on this channel could also be faulty, or the communication cable between them. 1.2.6 is the address for the CE305 on the drill block as you mentioned.

As Dylan mentioned, make sure your grounds are good. Would not hurt to put 8' copper ground rod behind machine, connect that to the main ground wire by the wire track.

Hi Chris
Thanks for the extra info, yes, we cut a lot of MDF.......
Have grounded all the flex hoses and improved the earth circuit, machine has been running for a week now with no issues.
Fingers crossed....

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